Efeito da intensidade luminosa no desenvolvimento larval do camarão-da-amazônia, macrobrachium amazonicum

Detalhes bibliográficos
Autor(a) principal: de Araujo, Mariana Cutolo
Data de Publicação: 2011
Outros Autores: Valenti, Wagner Cotroni [UNESP]
Tipo de documento: Artigo
Idioma: eng
por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/226475
Resumo: The effects of four light intensities (0; 2.8 ± 0.9; 5,5 ± 1,8 e 7,8 ± 2,5 1mol s-1 m-2, about 136.5 ± 87.5; 273 ± 43.8 e 390 ± 125 lux, respectively) on survival, productivity, weight gain and larval development of Macrobrachium amazonicum were investigated. Four treatments with three replicate tanks were evaluated. Newly hatched larvae were held in black tanks (80.2 ± 0.6 larvae L-1) filled with 50-L-brackish water (salinity of 10), in a recirculating system. Tanks were covered with shadow cloth allowing 35% and 70% light, respectively, to reach light intensities of 2.8 ± 0.9 and 5.5 ± 1.8 1mol s-1 m-2 at the water surface. Complete absence of light (0 1mol s-1 m-2) was obtained covering the tanks with opaque black plastic, and full-light condition used no covering (7.8 ± 2.5 1mol s-1 m-2). Observations showed that the survival rate was not affected by light intensity. Productivity and weight gain were higher under 7.8 ± 2.5 1mol s-1 m-2 light intensity than under 0 and 2.8 ± 0.9 1mol s-1 m-2 intensities (P<0.05). The larval development index was similar among the treatments under the different light intensities. However, from stage VII this index was increased slightly in the treatment under 7.8 ± 2.5 1mol s-1 m-2 light intensity. In conclusion, light intensity affects larval development of M. amazonicum. Values as high as 7.8 1mol s-1 m-2 (about 390 lux) improve the larval performance by enhancing development, productivity and weight gain compared to lower values.
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spelling Efeito da intensidade luminosa no desenvolvimento larval do camarão-da-amazônia, macrobrachium amazonicumThe effects of light intensities on larval development of amazon river prawn, macrobrachium amazonicumAmount of lightFreshwater prawnLaboratoryLarvicultureThe effects of four light intensities (0; 2.8 ± 0.9; 5,5 ± 1,8 e 7,8 ± 2,5 1mol s-1 m-2, about 136.5 ± 87.5; 273 ± 43.8 e 390 ± 125 lux, respectively) on survival, productivity, weight gain and larval development of Macrobrachium amazonicum were investigated. Four treatments with three replicate tanks were evaluated. Newly hatched larvae were held in black tanks (80.2 ± 0.6 larvae L-1) filled with 50-L-brackish water (salinity of 10), in a recirculating system. Tanks were covered with shadow cloth allowing 35% and 70% light, respectively, to reach light intensities of 2.8 ± 0.9 and 5.5 ± 1.8 1mol s-1 m-2 at the water surface. Complete absence of light (0 1mol s-1 m-2) was obtained covering the tanks with opaque black plastic, and full-light condition used no covering (7.8 ± 2.5 1mol s-1 m-2). Observations showed that the survival rate was not affected by light intensity. Productivity and weight gain were higher under 7.8 ± 2.5 1mol s-1 m-2 light intensity than under 0 and 2.8 ± 0.9 1mol s-1 m-2 intensities (P<0.05). The larval development index was similar among the treatments under the different light intensities. However, from stage VII this index was increased slightly in the treatment under 7.8 ± 2.5 1mol s-1 m-2 light intensity. In conclusion, light intensity affects larval development of M. amazonicum. Values as high as 7.8 1mol s-1 m-2 (about 390 lux) improve the larval performance by enhancing development, productivity and weight gain compared to lower values.Universidade Federal do Recôncavo da Bahia Centro de Ciências Agrárias, Ambientais e Biológicas Campus Universitário, Rua Rui Barbosa, n 710 - Bairro Centro - CEP: 44.380-000, Cruz das Almas-BAUniversidade Estadual Paulista Centro de Aquicultura Campus Experimental do Litoral Paulista, Praça Infante Dom Henrique, s/n - CEP: 11.330-900, São Vicente-SPUniversidade Estadual Paulista Centro de Aquicultura Campus Experimental do Litoral Paulista, Praça Infante Dom Henrique, s/n - CEP: 11.330-900, São Vicente-SPCentro de Ciências Agrárias, Ambientais e BiológicasUniversidade Estadual Paulista (UNESP)de Araujo, Mariana CutoloValenti, Wagner Cotroni [UNESP]2022-04-29T00:13:27Z2022-04-29T00:13:27Z2011-08-22info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article155-164Boletim do Instituto de Pesca, v. 37, n. 2, p. 155-164, 2011.1678-23050046-9939http://hdl.handle.net/11449/2264752-s2.0-80051744702Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengporBoletim do Instituto de Pescainfo:eu-repo/semantics/openAccess2022-04-29T00:13:27Zoai:repositorio.unesp.br:11449/226475Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:40:21.629254Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Efeito da intensidade luminosa no desenvolvimento larval do camarão-da-amazônia, macrobrachium amazonicum
The effects of light intensities on larval development of amazon river prawn, macrobrachium amazonicum
title Efeito da intensidade luminosa no desenvolvimento larval do camarão-da-amazônia, macrobrachium amazonicum
spellingShingle Efeito da intensidade luminosa no desenvolvimento larval do camarão-da-amazônia, macrobrachium amazonicum
de Araujo, Mariana Cutolo
Amount of light
Freshwater prawn
Laboratory
Larviculture
title_short Efeito da intensidade luminosa no desenvolvimento larval do camarão-da-amazônia, macrobrachium amazonicum
title_full Efeito da intensidade luminosa no desenvolvimento larval do camarão-da-amazônia, macrobrachium amazonicum
title_fullStr Efeito da intensidade luminosa no desenvolvimento larval do camarão-da-amazônia, macrobrachium amazonicum
title_full_unstemmed Efeito da intensidade luminosa no desenvolvimento larval do camarão-da-amazônia, macrobrachium amazonicum
title_sort Efeito da intensidade luminosa no desenvolvimento larval do camarão-da-amazônia, macrobrachium amazonicum
author de Araujo, Mariana Cutolo
author_facet de Araujo, Mariana Cutolo
Valenti, Wagner Cotroni [UNESP]
author_role author
author2 Valenti, Wagner Cotroni [UNESP]
author2_role author
dc.contributor.none.fl_str_mv Centro de Ciências Agrárias, Ambientais e Biológicas
Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv de Araujo, Mariana Cutolo
Valenti, Wagner Cotroni [UNESP]
dc.subject.por.fl_str_mv Amount of light
Freshwater prawn
Laboratory
Larviculture
topic Amount of light
Freshwater prawn
Laboratory
Larviculture
description The effects of four light intensities (0; 2.8 ± 0.9; 5,5 ± 1,8 e 7,8 ± 2,5 1mol s-1 m-2, about 136.5 ± 87.5; 273 ± 43.8 e 390 ± 125 lux, respectively) on survival, productivity, weight gain and larval development of Macrobrachium amazonicum were investigated. Four treatments with three replicate tanks were evaluated. Newly hatched larvae were held in black tanks (80.2 ± 0.6 larvae L-1) filled with 50-L-brackish water (salinity of 10), in a recirculating system. Tanks were covered with shadow cloth allowing 35% and 70% light, respectively, to reach light intensities of 2.8 ± 0.9 and 5.5 ± 1.8 1mol s-1 m-2 at the water surface. Complete absence of light (0 1mol s-1 m-2) was obtained covering the tanks with opaque black plastic, and full-light condition used no covering (7.8 ± 2.5 1mol s-1 m-2). Observations showed that the survival rate was not affected by light intensity. Productivity and weight gain were higher under 7.8 ± 2.5 1mol s-1 m-2 light intensity than under 0 and 2.8 ± 0.9 1mol s-1 m-2 intensities (P<0.05). The larval development index was similar among the treatments under the different light intensities. However, from stage VII this index was increased slightly in the treatment under 7.8 ± 2.5 1mol s-1 m-2 light intensity. In conclusion, light intensity affects larval development of M. amazonicum. Values as high as 7.8 1mol s-1 m-2 (about 390 lux) improve the larval performance by enhancing development, productivity and weight gain compared to lower values.
publishDate 2011
dc.date.none.fl_str_mv 2011-08-22
2022-04-29T00:13:27Z
2022-04-29T00:13:27Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Boletim do Instituto de Pesca, v. 37, n. 2, p. 155-164, 2011.
1678-2305
0046-9939
http://hdl.handle.net/11449/226475
2-s2.0-80051744702
identifier_str_mv Boletim do Instituto de Pesca, v. 37, n. 2, p. 155-164, 2011.
1678-2305
0046-9939
2-s2.0-80051744702
url http://hdl.handle.net/11449/226475
dc.language.iso.fl_str_mv eng
por
language eng
por
dc.relation.none.fl_str_mv Boletim do Instituto de Pesca
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 155-164
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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